jaholmes

DD,
Thanks for the insight. This is the feedback that I have gotten from myself on the track and others. This car from factory is a very capable car on the track with novice hands and DE events. I have done the RS alignment which call for a 1 deg neg camber, which I can probably be pushed a little more. Are their any other alignment tips.

The only thing is the ride height drives me nuts, can I just put the H&R lowering springs on a factory setup to get some of the ride height out.

For now I will probably focus on better tires for next year and maybe some more safety gear / mods and race seats.

I know this isn't the right forum, but I would like to get MPSC tires and I would like to go a little wider on the front and back then stock. Like 235/40's and 295/30's will these work. I have the hollow turbo twists and I think they are 8x18 and 10x18, so the wide wheels to suport them, but I get lost in the spacing and offset jargon. I have P-Zero Roso's now, so maybe the Sports or Sort PS2 would be better then the cups.

Thanks,
Jim

mitch236

Those MPSC's will fit perfectly.

jaholmes

Rock on, you just help me spend $1k. Now I just need to cut a deal with the local tire shop since I will be going through a set or two of them.

Thanks,
Jim

David 23

I have JIC with the mid level springs, 450/675, and the struts set about 3/4 stiff. It gives an acceptable street ride and very good track performance. I would certainly reccommend the JIC. However, after reading this thread, I wonder if I should step up to the 600/800? I drive to the track, and occasional street use. Bull, did you start with the mid springs and move up? Your thoughts? Also curious about your bars and settings.

Chris Prack

What makes you such an expert in shocks? Do you know what brand won the 24 hrs of Daytona in GT? I will give you a hint not Moton. There are other good brands of shocks out there. Be alittle less bias.

tkerrmd

Thanks for the good info Bob, Colin!

Chris what do you suggest?

Chris Prack

First off don't waste your money with PSS-9's. They are complete garbage. Bilstien does not warrenty race shocks but the do warrenty PSS-9's. Go figure. I have replaced quite a few of them for numerous reasons. I would not use them on a street car.

Having seen several different shocks on a shock dyno the most consistant and linear are without a doubt is JRZ. Motons were all over the place and more often then not overlapped several settings. I am not sure how usefull these adjustments are when the only place they are different is the first half inch or so on compression or rebound?

Buy a good shock to start with. Get some dyno charts. See for yourself.

If you can wait a couple of days I can post some data that I have.

forklift

I know I'm looking forward to it!

Tom W

I have the PSS-9s on my 993 which was used for dual track/street for a year before being retired to street only. They are ok but not great IMO and I would never buy them again. I have used JIC's (with mid range springs) for 3 years on my track only 964 and am very happy with them. I have "outgrown" what I started with and have just switched to full monoballs and EVO uprights. The springs are moving to 600/800 as a first step and may get more firm but still the same JIC shocks. I'll see how it goes with a 3 days to test, tweak and race this weekend. My car is 2500 lbs so, if you go the JIC route, you may want to go with the firm springs from the start.

While the non-adjustable factory option may work, you also may not be thrilled with it and it will not be all that easy to tweak. The JIC setup can be modified to fit your needs and it can be modified as your driving changes.

Count me in on the beer (and non of that emailed stuff).

Bull

David23, I took advantage of other's advice on the springs and went directly with the 600/800lb springs, mostly input from Dr. Jupeman, who ran JIC on his equally heavy Tubbo 3.6. He had started with the mid-level springs, then went heavier. I run with the shocks on setting 8 all the way around. My sways are H&R 26mm/24mm bars, set soft in front and firm for the rear.

David 23

Bull, when you say your shocks are on setting 8, is that 8 clicks from full hard? The 500/800 springs are what JIC calls 10/14 kg? I don't see a direct equivilent.
I assume if I change springs I will need to re corner balance ?

Bull

Actually 8 clicks from full soft, as close to the middle as one can get with 15 settings. The 10/14kg are actually 560/784lbs according to JIC...I was rounding, and those are what I have. Talk to Ben at JIC-Magic, info@jic-magic.com, and he will tell you about all of the spring options. there are more than shown on theitr website in the suggested packages. The shocks are good to 1000lbs.

David 23

That is the set I thought you were referring to. I am running about 3 clicks firmer (I'd have to check my notes to be exact) but on the softer springs. I may call Ben, but am really leaning toward trying the stiffer set. Is there a handling downside? I imagine the stiffer springs make even quicker transitions?

Bull

Transitions are very quick. The only handling change should be a more firm ride, but I still don't find it unacceptable on the street (not a daily driver).